Display screen with a graphical user interface



The sole FIGURE is a front view of a display screen with a graphical user interface showing our new design.

The broken lines around the FIGURE show a display screen, and form no part of the claimed design. The broken lines within the FIGURE show portions of the graphical user interface that form no part of the claimed design. 

CLAIM We claim the ornamental design for a display screen with a graphical user interface, as shown and described. 